Vat.



PATENTED JULY 7, 1903.

W. GRIESSER.

VAT.

APPLIOATION FILED DBO. 1a, 1902.

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PATENTED JULY 7, 1903.

W. GRIESSER.

VAT.

PPLIUATIOR FILED DEG. 13, 1902.

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UNITED STATES y Patented July 7, 1903.

PATENT OEEICE.

WILHELM GRIESSER, OF NEW YORK, N. Y.

VAT.

SPECIFICATION forming part of LettersPatent No. 733,191, dated July 7,1903.

Application filed December 13, 1902. Serial No. 135,121. (No model.)

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Be it known that-I, WILHELM GRIEssEn, a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented new and useful Improvements in Vats, of which thefollowing is a specification.

This invention relates to vats, and although the same is useful for manypurposes it is particularly advantageous for use in the brewing art,where it may be employed in different waysfor example, as a fermentingor stock tub or as a chip-vat.

In the present instance the vat is wholly made of metal, which may beeither cast-iron or cast-steel. Each of said metals have been foundWholly satisfactory in this connection.

The improved vat preferably has an integral double wall and bottom, thesections of which are respectively separated from each other to providea closed space for the reception of conduits to carry a fluid, which inthe brewing art may be a refrigerant, such as brine or ammonia.

In the brewing art the improved vat is of peculiar utility, as will nowappear. In brewing as customarily performed the fermenting and stocktubs and chip-vats are arranged in a specially-constructedrefrigerating-chamber, which is expensive to build and maintain at thedesired temperature. Vith my improved vat, however, this is notnecessary, for in order to secure the proper refrigeration of thecontents of said vat it may be located.

in an ordinary chamber or apartment, as by virtue of the double wallsand bottom of the same I provide a closed space through which arefrigerant can circulate to effectively cool the contents of such vat,and the conduits in the spaces in question are preferablyarranged in atortuous manner, whereby the eifect of the cooling medium upon thesubstance in the vat can be prolonged.

The improved vat in one simple and convenient embodiment thereof isrepresented in the accompanying drawings, forming a part of thisspecification, and in which- Figure l is a vertical sectional elevationof said vat, with a portion of the inner section of the double wallbroken away to illustrate the tortuous conduit or passage. Fig. 2 is ahorizontal sectional plan view of said vat.

Fig.` 3 is a plan View ofthe bottom of the same, the upper section ofthe bottom being broken away in order to show the tortuous passage insaid bottom; and Fig. 4 is a plan view of a modified form of bottom.

Like references refer to like parts in the several figures.

Referring more particularly to Figs. l to 3, inclusive, the vat therebyillustrated has a body 5, a bottom 6, and a top 7. The body ofthe vat,which is shown as being cylindrical in shape, although this is notessential, is composed of inner and outer Walls separated from eachother and covered at the top and bottom in order to provide a closedspace 8. The bottom is represented as being of concavo-convex form andas consisting of superposed sections separated from each other toprovide a closed space 9 and united near their margin, and they arepreferably made v integral. The bottom 6 is provided with acircumferential annular iiange 10, bolted to a similar flangell on theunder outer side of the cylindrical body 5, the two parts beingconnected in some liquid-tight manner.

The top 7 of the vat is united to the body thereof in a manner like theunion between said bottom and body and therefore need not be describedin detail.

vThe inlet of the vat is denoted by l2 and is represented as beinglocated in the top thereof, the outlet 13 being shown in the bottom 6.The liquid or other material to be subjected to refrigeration isdelivered to the vat 5 by way of the inlet 12 and is drawn therefrom, asoccasion may require, by way of the outlet 13.

In the closed space S of the double wall 5 is a tortuous conduit orpassage which may be of any suitable character, and the passage shown inFig. l will now be set forth. I arrangelin the closed space 8 thevertical partitions 14, although this disposition of the same islnotabsolutely necessary, and the partitions, it will be seen, are disposedin overlapping relation-that is to say, said partitions are alternatelysecured to the upper and lower walls or ends of the closed space 8 andextend across the same, as shown in Fig. 2. It will be seen that thelower and upper` ends of said partitions extend short of thecorresponding ends of the closed space S in order IOO of the vat.

I arrange in the closed space 9 of the bottom 6 a tortuous passage,(shown in detail in Fig. 3,) which is formed by a spiral partition 1S,the center of which coincides With that of the bottom. It will thereforebe understood that the refrigerant circulates through the bottom of thetank, and the same may be introduced by way of the inlet 19 and carriedoff therefrom by the outlet 20.

In Fig. 4 I have shown the tortuous passage in the bottom 6 as formed bythe partitions 21, arranged in staggered relation. In other wordsftheyare arranged like the partitions let, hereinbefore described, exceptthat they are horizontally disposed; otherwise the bottom shown by Fig.4 is the same as that illustrated by the other figures. It will beunderstood, therefore, that the improved metallic vat has an exteriorclosed space and a tortuous passage in said space.

Not only can the contents of the Vats be effectively and thoroughlycooled, but the refrigeration thereof can be individually controlled.

The invention may be modified within the scope of the following claims.

Having described the invention, what I claim is Y 1. A vat comprising adouble-walled unitary body, the sections of the body being separatedfrom each other to form a closed space,

said space containing a tortuous conduit and the outer section of thedouble wall having an inlet for a fluid near the upper side thereof, andan outlet for such iuid near the lower side thereof, the inlet andoutlet being located approximately diametrically opposite to each other,a cover for the body having an inlet to supply a liquid to the interiorof the vat, and a bottom for the body concaved upon its upper side andconsisting of superposed sections separated from each other to form aclosed space, said space containing a tortuousV conduit, and said bottomhaving an outlet for the liquid introduced into the vat, extendingthrough the superposed sections of said bottom.

2. A vat comprising a double-walled unitary body, the sections of thebody being separated from each other to form a closed space, said spacecontaining a tortuous conduit and the outer section of the double wallhaving an inlet for a iiuid near the upper side thereof, and an outletfor such uid near the lower side thereof, the inlet and outlet beinglocated approximately diametrically opposite to each other, a cover forthe body having a substantially central inlet for the admission of aliquid into the vat, and a bottom for the vat concavo-convex incross-section, the concave side being uppermost, said bottom consistingof superposed sections integral with and separated from each other toform a closed space, said bottom having a substantially central out-letfor the liquid, extending through the superposed sections thereof, andalso having a tortuous conduit between its sections.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witmesses.

WILHELM GRIESSER. Witnesses:

HEATH SUTHERLAND, ROBERT EVERETT.

